PAS-C01 Technology Practice Question
An SAP system is deployed across multiple Availability Zones using an Application Load Balancer (ALB) for the SAP Web Dispatcher. Users report that sessions are frequently dropped during peak hours. Which configuration change should resolve this?
⚠ Common exam trap
Test-takers frequently confuse horizontal scaling (Option B) with solving session persistence issues, not realizing that adding more instances without sticky sessions actually worsens the problem by increasing the chance of a request landing on an instance without the session context.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable sticky sessions (session affinity) on the ALB target group.
Enabling sticky sessions (session affinity) on the ALB target group ensures that all requests from a user session are routed to the same Web Dispatcher instance. Without session affinity, the ALB distributes requests across multiple Web Dispatcher instances, and if the session state is stored locally on each instance, subsequent requests may land on a different instance that does not have the session data, causing the session to be dropped. This is a common issue during peak hours when the load balancer distributes traffic more aggressively.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable cross-zone load balancing on the ALB.
Why it's wrong here
Disabling cross-zone load balancing reduces capacity and may worsen issue.
- ✗
Increase the number of Web Dispatcher instances in each Availability Zone.
Why it's wrong here
More instances may help with load but not session persistence.
- ✗
Enable deletion protection on the ALB.
Why it's wrong here
Deletion protection prevents accidental deletion, not session drops.
- ✓
Enable sticky sessions (session affinity) on the ALB target group.
Why this is correct
Sticky sessions ensure requests from a user go to the same instance.
Visual reference
Go deeper
Related to this question
About these practice questions
Courseiva writes every PAS-C01 question from scratch — 1,616 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.